An ancient baby’s skeleton has revealed through its DNA that all Native Americans descended from a single gene pool with roots in Asia.

The bones belong to an infant that died between 12,707 and 12,556 years ago in Montana. The baby was covered in red ochre and buried on a hillside along with more than 100 stone and bone tools characteristic of Clovis people, a Paleo-Indian culture that was widespread in North America at the time. The grave of the 1-year-old boy, discovered by construction wor...